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LG Flatron LB700G-GD Service Manual Download Page 14

- 14 -

3. NO CLOCK (CLOCK GENERATOR)

NO DOT CLOCK

TROUBLE IN
X201

CHECK

X201 20MHz ?

NO

YES

4. TROUBLE IN DPM

TROUBLE IN DPM

TROUBLE IN PC

CHECK PC 
PC IS NOT GOING
INTO DPM OFF MODE 

NO

TROUBLE IN
X201

NO

TROUBLE IN
SIGNAL CABLE

NO

YES

YES

YES

CHECK

U203 PIN 102

WAVEFORM 

(20MHz) ?

CHECK 

R713, R715

(SYNC) ?

CHECK

U203 PIN 34

(0V) ?

Summary of Contents for Flatron LB700G-GD

Page 1: ...http biz LGservice com E mail http www LGEservice com techsup html CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS NO CL 42 FACTORY MODEL LB700G MODEL L1710S LB700G GU L1710S LB700G GD L1710S LB700G GL ID LABEL MODEL No ...

Page 2: ...or 15 0 0 7 Vp p 3 Input Impedance 75 Ω 3 3 Operating Frequency Horizontal 30 83kHz Digital 71kHz Vertical 56 75Hz 4 Max Resolution Analog 1280 x 1024 75Hz 5 POWER SUPPLY 5 1 Power AC 100 240V 50 60Hz 1 0A 5 2 Power Consumption 6 ENVIRONMENT 6 1 Operating Temperature 10 C 35 C 50 F 95 F Ambient 6 2 Relative Humidity 10 80 Non condensing 6 3 MTBF 50 000 Hours Min 7 DIMENSIONS with TILT SWIVEL Width...

Page 3: ... such as pencil or pen as this may result in damage to the panel Protect the module from the ESD as it may damage the electronic circuit C MOS Make certain that treatment person s body are grounded through wrist band Do not leave the module in high temperature and in areas of high humidity for a long time The module not be exposed to the direct sunlight Avoid contact with water as it may a short c...

Page 4: ...V 60 0 806 768 3 6 29 H 60 123 1312 1024 16 96 176 V 75 029 800 768 1 3 28 H 68 681 1456 1152 32 128 144 V 75 062 915 870 3 3 39 H 61 805 1504 1152 18 134 200 V 65 96 937 900 2 4 31 H 63 981 1688 1280 48 112 248 V 60 02 1066 1024 1 3 38 H 79 976 1688 1280 16 144 248 V 75 035 1066 1024 1 3 38 Mode H V Sort 1 2 3 4 5 6 7 8 9 10 11 12 13 25 175 28 321 25 175 31 5 40 0 49 5 57 283 65 0 78 75 100 0 92 ...

Page 5: ...play 4 Button Use these buttons to choose or adjust items in the On Screen Display 5 SELECT Button Use this button to enter a selection in the On Screen Display Use this button to scanning auto adjust 6 AUTO Button Use this button to enter a selection in the on screen display D Sub Signal Connect AUTO adjustment function TO the AUTO button before using OSD menu This button is for the automatic adj...

Page 6: ...n Board LCD Module Control Board CN1 CN3 J702 J705 J710 CN2 J1 6 WIRING DIAGRAM AU Module Connector Ass y P N 6631T12002L Connector Ass y P N 6631T25008V Connector Ass y P N 6631T11012W Connector Ass y P N 6631T12002M ...

Page 7: ... Module LPL Module Power Board Main Board LCD Module Control Board CN1 CN3 J702 J705 J710 CN2 J1 Connector Ass y P N 6631T12002L Connector Ass y P N 6631T25008V Connector Ass y P N 6631T11012W Connector Ass y P N 6631T12002M ...

Page 8: ... G B differential LVDS Low Voltage Differential Signaling Data 8 Bi t Address 5V AVDD 3 3V DVDD 3 3V 5V AC Inpu t AVDD 2 5V DVDD 2 5V AVDD3 3V DVDD3 3V AVDD2 5V DVDD2 5V 5V 5V 12V R G B H V Sync BLOCK DIAGRAM ...

Page 9: ...stores program data Reset IC The Scaler gets the video signal converted analog to digital interpolates input to 1280 x 1024 resolution signal and outputs 8 bit R G B signal to transmitter Especially pre amp ADC Video controller Transmitter are merged to one chip Gm2121 by Genesis This part transmit digital signal from the Scaler to the receiver of module 2 Power Part This part consists of the one ...

Page 10: ...a bulk capacitor 3 Energy Transfer This part function is transfer the primary energy to secondary through a power transformer 4 Output rectifier and filter This part function is to make a pulse width modulation control and to provide the driver signal to power switch to adjust the duty cycle during different AC input and output loading condition to achive the dc output stablize and also the over p...

Page 11: ...t SXGA 60Hz 2 Select COLOR BIAS CALIBRATION command and Enter 3 No attempt to manually adjust BIAS data is auto matically adjusted and saved to the EEPROM 4 Display Full White pattern at SXGA 60Hz 5 Select GAIN CALIBRATION command and Enter 6 6500K and 9300K are automatically adjusted and saved to the EEPROM 7 Select COLOR PRESET END command and Enter 3 Adjustment for EDID 1 Use this procedure onl...

Page 12: ...TROUBLE IN LIPS POWER CHECK J702 5V VOLTAGE 5V NO NO POWER POWER INDICATOR OFF TROUBLE SOMEWHERE ELSE TROUBLE IN LIPS POWER CHECK J702 INPUT VOLTAGE 12V NO TROUBLE IN U203 or X201 NO YES YES YES CHECK U203 s PIN 103 IS THIS PIN OSCILLATED ...

Page 13: ...RASTER TROUBLE IN U804 CHECK J705 PIN 1 2 3 5V NO NO RASTER TROUBLE IN LIPS CHECK J702 PIN 5 6 5V NO TROUBLE IN U801 CHECK U801 3 3V NO TROUBLE IN U203 CHECK U203 GM2121 NO YES YES YES YES TROUBLE IN LCD MODULE ...

Page 14: ... X201 CHECK X201 20MHz NO YES 4 TROUBLE IN DPM TROUBLE IN DPM TROUBLE IN PC CHECK PC PC IS NOT GOING INTO DPM OFF MODE NO TROUBLE IN X201 NO TROUBLE IN SIGNAL CABLE NO YES YES YES CHECK U203 PIN 102 WAVEFORM 20MHz CHECK R713 R715 SYNC CHECK U203 PIN 34 0V ...

Page 15: ...228 R225 R226 R224 C280 C210 C281 C204 C221 R223 C282 R212 R238 C239 5 10 U201 25 C722 C721 R744 R743 5 160 R209 150 140 130 120 J710 C720 C209 R742 10 110 R202 15 R264 R259 R243 R242 20 R201 R251 R241 R244 R245 R240 R253 C217 J705 20 100 C201 C232 Q202 X201 R248 R257 R256 R254 R252 R249 R239 R247 R246 30 R220 90 C202 C218 C215 R280 C806 C241 C237 C242 40 C212 50 60 C231 C235 70 C238 80 U203 C208 ...

Page 16: ... 16 3 ADAPTER BOARD Component Side 4 ADAPTER BOARD Solder Side To apply the AU Module ...

Page 17: ... 17 5 ADAPTER BOARD Component Side 6 ADAPTER BOARD Solder Side To apply the HYDIS Module ...

Page 18: ... 18 EXPLODED VIEW 1 2 4 7 3 10 5 6 9 8 11 c b a ...

Page 19: ...P WIRE LB700K METAL ASSEMBLY FRAME LB700G HYUNDAI LB700G GD METAL ASSEMBLY FRAME LB700G AU LB700G GU METAL ASSEMBLY FRAME LB700G LPL LB700G GL PWB PCB ASSEMBLY POWER AI 0019 POWER TOTAL LIENCHANG LB700K LIPS FOR HYDIS LPL LB700G GD LB700G GL PWB PCB ASSEMBLY POWER LB700K POWER TOTAL POWERNET PWI1504FG A 12V 1 2A 5V 1A LIPS FOR HYDIS LB700G GD LB700G GL PWB PCB ASSEMBLY POWER 17 HYDIS LB700K POWER ...

Page 20: ...TP NP0 C724 0CC471CK41A 470PF 1608 50V 5 R TP NP0 C725 0CC471CK41A 470PF 1608 50V 5 R TP NP0 C801 0CE107EF638 100UF KMG 16V M FM5 TP 5 DATE 2004 05 12 S AL LOC NO PART NO DESCRIPTION SPECIFICATION C802 0CH8107D611 100UF 10V 20 85STD CYL R T C803 0CH8107D611 100UF 10V 20 85STD CYL R T C804 0CK104CK56A 0 1UF 1608 50V 10 R TP X7R C805 0CC102CK41A 1000PF 1608 50V 5 R TP NP0 C806 0CC102CK41A 1000PF 160...

Page 21: ...OHM 1 10 W 5 1608 R TP R276 0RJ0472D677 47 OHM 1 10 W 5 1608 R TP R277 0RJ0472D677 47 OHM 1 10 W 5 1608 R TP R701 0RJ1001D677 1K OHM 1 10 W 5 1608 R TP R702 0RJ1002D677 10K OHM 1 10 W 5 1608 R TP R703 0RJ0752D677 75 OHM 1 10 W 5 1608 R TP R704 0RJ0752D677 75 OHM 1 10 W 5 1608 R TP R705 0RJ0752D677 75 OHM 1 10 W 5 1608 R TP R711 0RJ0332D677 33 OHM 1 10 W 5 1608 R TP R712 0RJ0332D677 33 OHM 1 10 W 5...

Page 22: ...SCHEMATIC DIAGRAM 22 1 GM2121 ...

Page 23: ... 23 2 POWER ...

Page 24: ... 24 3 CONNECTOR ...

Page 25: ... 25 4 CONTROL KEY ...

Page 26: ... 26 5 ADAPTER AU Module ...

Page 27: ... 27 6 INVERTER AU Module ...

Page 28: ... 28 7 ADAPTER HYDIS Module ...

Page 29: ... 29 8 INVERTER HYDIS Module ...

Page 30: ...Oct 2002 P NO 3828TSL074G Printed in Korea ...

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